Negative angle material pressing forming device
The negative angle pressing forming device addresses the challenge of upward movement in stamping dies by using a pad, pressing slider, and nitrogen springs to facilitate stable negative angle formation, enhancing the forming process's accuracy and quality.
Patent Information
- Application Number
- CN202323526661.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-22
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2033-12-22
AI Technical Summary
Existing stamping dies face challenges in forming negative angles due to the inability of the oblique punch to move upward after the mold is closed, limiting their application in negative angle molding of products.
A negative angle pressing forming device with a pad, pressing slider, inclined block, and nitrogen springs that allow the upper die to move upward during the forming process, facilitated by a combination of vertical and oblique guide plates and nitrogen springs, enabling stable negative angle formation.
Enables stable and high-quality negative angle forming by allowing the upper die to move upward, enhancing the pressing force and improving the accuracy and stability of the forming process.
Smart Images
Figure CN222268351U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of stamping dies, in particular to a negative angle pressing material forming device. Background Art
[0002] Automotive hardware molds are often required to form negative angles on products during production and molding due to the increasingly complex shaping and modeling of products. Negative angle molding is not easy to operate, and generally the negative angle molding die needs to be tilted to stamp the product to form a negative angle. The applicant applied for a Chinese patent document with application number 202222964035.X on November 7, 2022, which discloses an oblique punching mechanism and an oblique punching mold, including a driving block, a limit plate, a guide plate, an oblique pressure plate, an elastic member, an oblique punch and an oblique punch seat. The bottom surface of the driving block is provided with an inclined surface, the guide plate is provided on the inclined surface and is parallel to the inclined surface, the top surface of the oblique pressure plate is in conflict with the guide plate, one end of the limit plate is fixedly connected to the driving block, and the other end of the limit plate is provided with a limit hook, the oblique pressure plate is provided with a limit step, the limit hook is in conflict with the limit step, the oblique punch is installed on the bottom surface of the oblique pressure plate, the oblique punch slides through the inner hole of the oblique punch seat, and the elastic member is elastically connected to the oblique pressure plate. Although the patent document can stamp parts at an angle, the oblique punch cannot move upward after the mold is closed, so it cannot be used in stamping dies for negative angle molding of products. Therefore, the defect is very obvious, and a solution is urgently needed. Utility Model Content
[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a negative angle pressing forming device.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A negative angle pressing and forming device comprises a pad, a pressing slider arranged below the bottom surface of the pad, a pressing nitrogen spring connected between the pad and the pressing slider, an inclined block arranged on the bottom surface of the pressing slider, a vertical guide plate installed on the outer side wall of the pressing slider, a forming slider obliquely arranged below the pressing slider, an upper negative angle forming die installed on the bottom surface of the forming slider, an inclined guide plate installed on the outer side wall of the forming slider, a reset nitrogen spring connected to the top of the forming slider and an interference inclined surface arranged on the top surface of the forming slider, wherein the inclined block is arranged corresponding to the interference inclined surface and is used to interfere with the interference inclined surface.
[0006] Furthermore, a connecting block is installed on the top outer side wall of the forming slider, and one end of the reset nitrogen spring is fixedly connected to the connecting block.
[0007] Furthermore, a first key slot is recessed on the bottom surface of the forming slider, and a second key slot corresponding to and connected to the first key slot is recessed on the top surface of the upper negative angle forming die. Connecting keys are provided in the first key slot and the second key slot, and the forming slider and the upper negative angle forming die are detachably connected via a locking piece.
[0008] Furthermore, a reset limit groove is recessed on the outer side wall of the forming slider, a reset limit piece is arranged outside the side wall of the forming slider, the reset limit piece is provided with a reset limit block protruding into the reset limit groove, and the reset limit block is used to abut against the bottom wall of the reset limit groove.
[0009] Furthermore, a travel groove is recessed on the outer side wall of the pressing slider, a travel limiter is arranged outside the side wall of the pressing slider, the travel limiter is provided with a travel limit block protruding into the travel groove, and the travel limit block is used to abut against the top wall of the travel groove.
[0010] The beneficial effects of the utility model are as follows: in actual application, the pad is installed on the upper die seat, the pressing slide block is vertically slidably connected to the upper die seat via the vertical guide plate, the forming slide block is obliquely slidably connected to the pressing plate of the upper die seat via the inclined guide plate, the pressing plate and the upper die seat are elastically slidably connected, the reset nitrogen spring is installed on the pressing plate, and a lower negative angle forming die is movably arranged on the lower die seat, and the lower negative angle forming die and the upper negative angle forming die are arranged correspondingly up and down; at the beginning, there is a gap between the inclined block and the interference inclined surface; when the upper die seat and the lower die seat are closed, the upper negative angle forming die will first contact with the product, so that the forming slide block will stretch the reset nitrogen spring, and as the lower die seat moves downward, the pressing slide block continues to move downward, so that the inclined block conflicts with the interference inclined surface and exerts pressure on the interference inclined surface The pressure nitrogen spring will be compressed, and the rebound force of the pressure nitrogen spring acts on the upper negative angle forming die via the pressure slider, the inclined block and the forming slider in sequence, so that the upper negative angle forming die can press the product. At this time, the lower negative angle forming die moves toward the upper negative angle forming die, so that when the lower negative angle forming die performs negative angle forming on the product, the lower negative angle forming die will apply an upward force to the upper negative angle forming die. This force acts on the pressure nitrogen spring via the forming slider, the inclined block and the pressure slider in sequence, and compresses the pressure nitrogen spring, so that the upper negative angle forming die can move upward when performing negative angle forming on the product, and the rebound force of the pressure nitrogen spring can better press the product, which is conducive to stably performing negative angle forming on the product. The utility model has a simple structure, can stably press materials and complete negative angle forming, and improves the quality of negative angle forming of products. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a three-dimensional structural schematic diagram of the utility model in a mold closing state.
[0012] Figure 2 It is a three-dimensional structural schematic diagram of the utility model in a mold opening state.
[0013] Description of reference numerals:
[0014] 1. Pad; 2. Pressing slider; 3. Pressing nitrogen spring; 4. Oblique block; 5. Vertical guide plate; 6. Forming slider; 7. Upper negative angle forming die; 8. Oblique guide plate; 9. Reset nitrogen spring; 10. Resistance inclined surface; 11. Connecting block; 12. First keyway; 13. Second keyway; 14. Connecting key; 15. Reset limit slot; 16. Reset limit member; 17. Travel slot; 18. Travel limit member; 19. Travel limit block; 20. Reset limit block. DETAILED DESCRIPTION
[0015] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.
[0016] like Figure 1 and Figure 2 As shown, the utility model provides a negative angle pressing and forming device for a stamping die, which includes a pad 1, a pressing slider 2 arranged below the bottom surface of the pad 1, a pressing nitrogen spring 3 connected between the pad 1 and the pressing slider 2, an inclined block 4 arranged on the bottom surface of the pressing slider 2, a vertical guide plate 5 installed on the outer side wall of the pressing slider 2, a forming slider 6 obliquely arranged below the pressing slider 2, an upper negative angle forming die 7 installed on the bottom surface of the forming slider 6, an inclined guide plate 8 installed on the outer side wall of the forming slider 6, a reset nitrogen spring 9 connected to the top of the forming slider 6 and a contact inclined surface 10 arranged on the top surface of the forming slider 6, the inclined block 4 is arranged corresponding to the contact inclined surface 10, and the inclined block 4 is used to contact and cooperate with the contact inclined surface 10; the sliding direction of the pressing slider 2 is arranged at an angle to the sliding direction of the forming slider 6.
[0017] In actual application, the pad 1 is installed on the upper die seat, the pressing slide block 2 is vertically slidably connected to the upper die seat via a vertical guide plate, the forming slide block 6 is obliquely slidably connected to the pressing plate of the upper die seat via an inclined guide plate 8, the pressing plate and the upper die seat are elastically slidably connected, and a reset nitrogen spring 9 is installed on the pressing plate. A lower negative angle forming die is movably arranged on the external lower die seat, and the lower negative angle forming die and the upper negative angle forming die 7 are correspondingly arranged up and down; at the beginning, there is a gap between the inclined block 4 and the abutting inclined surface 10; when the upper die seat and the lower die seat are closed, the upper negative angle forming die 7 will first contact with the product, so that the forming slide block 6 will stretch the reset nitrogen spring 9, and as the lower die seat moves downward, the pressing slide block 2 continues to move downward, so that the inclined block 4 abuts against the abutting inclined surface 10 and applies pressure to the abutting inclined surface 10, and the pressing nitrogen spring 3 will be compressed, and the rebound force of the pressure nitrogen spring 3 acts on the upper negative angle forming die 7 through the pressure slider 2, the inclined block 4 and the forming slider 6 in turn, so that the upper negative angle forming die 7 presses the product. At this time, the lower negative angle forming die moves in the direction of the upper negative angle forming die 7, so that when the lower negative angle forming die performs negative angle forming on the product, the lower negative angle forming die will apply an upward force to the upper negative angle forming die 7. This force acts on the pressure nitrogen spring 3 through the forming slider 6, the inclined block 4 and the pressure slider 2 in turn, and compresses the pressure nitrogen spring 3, so that the upper negative angle forming die 7 can move upward when the product is negatively formed, and the rebound force of the pressure nitrogen spring 3 can make the upper negative angle forming die 7 better press the product, which is conducive to the stable negative angle forming of the product. After the upper die seat and the lower die seat are opened, the upper negative angle forming die 7 is reset under the rebound force of the reset nitrogen spring 9 to facilitate the next negative angle forming. The utility model has a simple structure, can stably press materials and complete negative angle forming, and improves the quality of negative angle forming of products.
[0018] In this embodiment, a connection block 11 is installed on the top outer side wall of the forming slider 6, and one end of the reset nitrogen spring 9 is fixedly connected to the connection block 11. This structural design facilitates the connection between the reset nitrogen spring 9 and the forming slider 6.
[0019] In this embodiment, the bottom surface of the forming slider 6 is concavely provided with a first key groove 12, and the top surface of the upper negative angle forming die 7 is concavely provided with a second key groove 13 corresponding to and communicating with the first key groove 12. A connecting key 14 is provided in the first key groove 12 and the second key groove 13, and the forming slider 6 and the upper negative angle forming die 7 are detachably connected via a locking piece. This structural design improves the assembly accuracy and stability of the forming slider 6 and the upper negative angle forming die 7.
[0020] In this embodiment, the outer side wall of the forming slider 6 is concavely provided with a reset limit groove 15, and the outer side wall of the forming slider 6 is provided with a reset limit member 16, and the reset limit member 16 is provided with a reset limit block 20 protruding into the reset limit groove 15, and the reset limit block 20 is used to abut against the bottom wall of the reset limit groove 15. At the beginning, under the elastic force of the reset nitrogen spring 9, the reset limit block 20 abuts against the bottom wall of the reset limit groove 15 to limit the starting position of the forming slider 6, thereby improving the position accuracy and stability of the forming slider 6.
[0021] In this embodiment, a travel groove 17 is recessed on the outer side wall of the pressing slide block 2, and a travel limiter 18 is disposed outside the side wall of the pressing slide block 2. The travel limiter 18 is provided with a travel limiter block 19 protruding into the travel groove 17, and the travel limiter block 19 is used to abut against the top wall of the travel groove 17. The travel groove 17 cooperates with the travel limiter block 19 of the travel limiter 18 to limit the sliding stroke of the pressing slide block 2, thereby improving the position accuracy and stability of the pressing slide block 2.
[0022] All technical features in this embodiment can be freely combined according to actual needs.
[0023] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.
Claims
1. A negative angle pressing forming device, characterized in that: The invention comprises a backing plate (1), a pressing slider (2) arranged below the bottom surface of the backing plate (1), a pressing nitrogen spring (3) connected between the backing plate (1) and the pressing slider (2), an inclined block (4) arranged on the bottom surface of the pressing slider (2), a vertical guide plate (5) installed on the outer wall of the pressing slider (2), a forming slider (6) obliquely arranged below the pressing slider (2), an upper negative angle forming die (7) installed on the bottom surface of the forming slider (6), an inclined guide plate (8) installed on the outer wall of the forming slider (6), a reset nitrogen spring (9) connected to the top of the forming slider (6), and a resisting inclined surface (10) arranged on the top surface of the forming slider (6), wherein the inclined block (4) is arranged corresponding to the resisting inclined surface (10), and the inclined block (4) is used for resisting and cooperating with the resisting inclined surface (10).
2. A negative angle pressing forming device according to claim 1, characterized in that: A connecting block (11) is installed on the top outer side wall of the forming slide block (6), and one end of the reset nitrogen spring (9) is fixedly connected to the connecting block (11).
3. A negative angle pressing and forming device according to claim 1, characterized in that: A first key groove (12) is recessed on the bottom surface of the forming slider (6), a second key groove (13) corresponding to and communicating with the first key groove (12) is recessed on the top surface of the upper negative angle forming die (7), connecting keys (14) are provided in the first key groove (12) and the second key groove (13), and the forming slider (6) and the upper negative angle forming die (7) are detachably connected via a locking piece.
4. A negative angle pressing and forming device according to claim 1, characterized in that: A reset limit groove (15) is recessed on the outer side wall of the forming slider (6), a reset limit piece (16) is arranged outside the side wall of the forming slider (6), the reset limit piece (16) is provided with a reset limit block (20) protruding into the reset limit groove (15), and the reset limit block (20) is used to abut against the bottom wall of the reset limit groove (15).
5. The negative angle pressing forming device according to claim 1, characterized in that: A travel groove (17) is recessed on the outer side wall of the pressing slide block (2), a travel limiter (18) is arranged outside the side wall of the pressing slide block (2), the travel limiter (18) is provided with a travel limiter block (19) protruding into the travel groove (17), and the travel limiter block (19) is used to abut against the top wall of the travel groove (17).